Full form of PSTN

What is the full form of PSTN?

Answer :

  • Public Switched Telephone Network

What does PSTN mean? 

PSTN is the global interconnects of circuit-switched telephone networks consists of the access network and core networks such as telephone lines, fiber optics cables, microwave transmission links, cellular networks, communication satellites, and undersea telephone cables, all are interconnected by switching centers. 

It is the world's collection of an inter-connected voice-oriented public telephone network, both commercial and government-owned.